Ive got a athlon xp barton 2800+... runs at 2.0ghz. say i was to upgrade to an Athlon 64 3200+... that also runs stock at 2.0ghz. excuse my ignorance, but since they run at the same frequency, how much faster is the 64 and would it be worth it. I know theres so many other factors that the operating freq. but im not sure if it would be worth it.